Hi,
The purpose of the attestation is to ensure that you are submitting something authentic. If you are submitting an original employment certificate ( not photocopy) on company's letter head with their seal, there is no need to attest it. If sending a photocopy, it is better to send certified copies only ( by notary or who ever authorised), so that there will not be any further querry about it. To my understanding, not seen any discussion to send certificate attested by Chamber of Commerce. In fact there is nothing wrong if you do so, except some additional expence.
( sir wilson do have to submit a translated copy of my IQAMA/ residence permit, I am currently working in saudi arabia, one more thing is that in the translated to english document, my job is general nurse ( technician medical laboratory) but in my certificate of emplyment is Medical Laboratory technologist which is my current jon tittle, do I have to attach a affidavit of explanation to Iqama translation stating that my job is general nurse( technician Medical laboratory) which is saudi health specialist categorize foriegners like us though the job title is medical laboratory technologist?
please help.